How to hide edges/viewport after import from Warehouse (Sketchup/Collada)
I had same look with my model when imported .dae
In my case it was textured mesh+ wireframe. So just go to edit mode, and in material properties click on your material and press select (do this with all materials).
After that you should have selected all mesh without wireframe (you can press ctrl+i to invert selection to wireframe and delete it)
Hope this will help you.